Love your scrappy quilt top! What do you think about using your blue border material along with a white on white fabric made into a straight line of flying geese... just let them fly all around the quilt for the border? Or maybe even windmills? and a possiblitiy of using prairie points for the outside edges? I just think borders shouldn't be too simple for a lovely scrappy quilt..
It's already exciting, so just keep going til the whole quilt sings! In my humble opinion...